Gregory Is Researching the Use of Certain Drugs for Treating

Multiple Choice

Gregory is researching the use of certain drugs for treating anemia in women living in a developing country.Which of the following approaches is the most focused on his research?

A) Use specialized search tools to search the Library of Congress.
B) Use a general search engine but refine search queries using search operators.
C) Use the web directories created by health research institutions.
D) Use a general search engine and use specific keywords.